As per the International Telecommunication Union-Radio Communication Sector (ITU-R), any network having a peak download rate of 100 Mbps for high mobility and up to 1 Gbps for stationary wireless access will be termed as a 4G network.
4G service has started in India by Airtel first and now you are able to use services. If you are not satisfied with your 3G network then ready to take 5 times faster services on 4G network. Now the internet down time issues has gone and all your media related streaming will not take more than seconds.
4G is descendant to 3G technology, offering data transfer speeds of up to 100 Mbps, but typical speeds will be in the range of 12 – 15 Mbps. 4G network is currently deployed using LTE (Long Term Evolution) and WiMAX (Worldwide Interoperability for Microwave Access) technologies.
Long Term Evolution
LTE, LTE-A (LTE Advanced), WiMAX Rel 1, and WiMAX Rel 2 are some of the favored 4G network standards. This became more interesting if I say that you cannot use 4G network to call. Yes! 4G networks are based on neither GSM nor CDMA technology, but are instead based on OFDMA, SC-FDMA technologies. That’s why the basic 4G networks can’t make voice calls and a new standard called VoLTE is being established to make that possible.
Below are the standard based performance descriptions of the 4G service provider technologies, which will help you to choose the best plans.
|Network||ITU-R Standard||Radio||Maximum Theoretical Download Speed||Maximum Theoretical Upload Speed|
|4G||LTE||OFDMA||Up to 100 Mbps (Cat3)||Up to 50 Mbps (Cat4)|
|4G||LTE-A||OFDMA, SC-FDMA||Up to 1 Gbps||Up to 500 Mbps|
|4G||WiMAX Rel. 1||OFDMA||Up to 30-40 Mbps||Up to 17 Mbps|
|4G||WiMAX Rel. 2||OFDMA||Up to 1 Gbps||Up to 376 Mbps|
FDD & TDD are also the game changers:
Most cell-phone systems use Frequency Division Duplex (FDD). The newer LTE and 4G systems use FDD. Cable TV systems are fully FDD.
However most wireless data transmissions are TDD. WiMAX and Wi-Fi use TDD. Because of the spectrum scarcity and expense, TDD is also being embraced in some cellular systems, such as China’s TD-SCDMA and TD-LTE systems.
TDD appears to be the better overall choice, but FDD is far more widely executed because of prior frequency spectrum assignments and earlier technologies. FDD will continue to subjugate the cellular business for now. Yet as spectrum becomes more costly and scarce, TDD will become more widely adopted as spectrum is reallocated and repurposed.
Now if you will have an option to choose between LTE-A and WiMAX Rel. 1 4G network on the same cost then you have become enough sharp to choose the best one.